Icon didnt show properly on Firefox

Dear Canvas team,

Icon didnt show properly on Firefox. I open file /Package-HTML/HTML/one-page/index.html and it didnt show the icons (eg. icon-reorder, icon-angle-down, social icon and etc.). I test it on windows and also osx, both firefox didnt work.

Can you help? Thanks.

Somehow after restart and suddenly now fix.

Resolved.